Know the chemicals responsible for pain sensation  What are the components of the myelin sheath  Know the make-up and functions of unipolar, bipolar, and multipolar neurons  Where are voltage gated channels located on a neuron  Where do action potentials begin and end  Know the direction of movement of sensory (afferent) and motor (efferent) neurons  Know the major parts of a neuron  Define the function and location of a synaptic cleft  Where are graded potentials formed and located on a neuron  Know the descriptions and functions of the four neuroglial cells of the CNS and two of the PNS  Which are the most numerous of the neuroglial cells  Know the locations of intracellular and extracellular ions of a resting potential  Know the major functions and divisions of the nervous system  Define summation, saltation, and continuous conduction  Know structures associated with/found in the CNS and PNS  Define dermatome, plexus, tract  Know the plexuses, their major nerves, and muscles innervated by each  Describe the different types of reflexes (crossed extensor, Babinski, etc.)  Know the spinal nerve function and the number of spinal nerves in each segment/region. Also, where does the spinal cord begin and end  Know the location, function, and spaces associated with the meninges  Know contents of each space of the meninges  Which nerve innervates the diaphragm  Describe the function of the posterior/dorsal rood  Which is the largest and longest nerve in the body  Know how to determine movement of information of various ascending and descending tracts  Know the nerves associated with carpal tunnel syndrome  Know the five parts of a reflex arc